Armored tire



J. TROST.

ABMORED TIRE. APPLICATION FILED MAY 29, 1922.

1,434,571. Patented Nov. 7, 1922..

r yr c r a W a a. i 5'1 time all ii. an ll JOHN TROST, DETROIT,

ARES/193E]? TIRE.

To all whom it may concern Be it known that T, JOHN Tnosr, a citizen of the United States of America residing at Detroit, in the county of Wayne and State of Michigam have invented certain new and useful Tmprovements in Armored Tires, of which the following is a spec'lication rcuce being bad therein to the accompan drawings.

This invention relates to pneumatic tires for automobiles and has for its principal object the provision of an armor for the outer casing which will prevent cutting or puncturning of the inner tube.

A further object of the invention is to provide a form of armor which will not be injurious to the inner tube.

A still further object of the invention is to provide an armor for an outer casing which will have sufficient flexibility to prevent injury to the sides of the casing at the portions where the greatest amount of bending occ A still further'object of the invention is the provision of an armor composed of a plurality of metallic pieces provided with means holding the pieces separated from each other to an extent such that inpirious friction between the pieces of metal will not not occur during the use of the tire.

Other and further objects will appear in connection with the description reference being had to the drawing in which Figure l is a transverse section through an outer casing constituting one embodiment of my invention, and

Fig. 2 is a plan view of a fragment of the armor.

The layer of armor used in this tire casing is constructed of a network of interlacing metallic rings 1 arranged substantially parallel to each other, a network of interlacing cords 2 being arranged diagonally through the interlaced rings in such manner that the cords separate the rings at the points at which they would normally lie in contact. The cords 2 are saturated with rubber before they are interwoven with the rings and when the assemblage of cords and rings has its interspaces filled with rubber Vulcan-- ized in place, the rings are almost entirely out of contact with each other. The network of cords is substantially twice as wide the central band of interlaced rings and the ends of the cords are frayed out as indicated at 3.

In assembling the casing a plurality of sheets of canvas 4: are placed upon a core, the

Application filed May canvas being continuous from side to side of Thin layers of rubber placed successive layers of canvas and between the upon the outer surface of the final layer placed a thicker layer of rubber indicated at 5. Upon this layer 5 is placed the armor section with the central portion of the band or metal links at the center of the tread oi? the casing. Upon the armor section is placed the outer layer of rubber 6 with tl'ieusual anti-skid knobs 7 in the center of the outer periphery.

In the form of easing shown in Fig. l, the inner layers of canvas 4 will extend outward around the bottom portion of the heads at each free edge of the casing as indicated at 8 and thence around the outer portion of the casing as indicated at 9 being embedded within the body of the tire at their end portions and protected by an outer layer of rubher 10. The cord portion of the armor eX- tends from the metallic ring section sub stantially parallel with the canvas layers l into the head portion of the casing which will normally have a cable 11 centrally there of for greater Strength. The cord section will extend around this cable parallel with the section 8 of the canvas and thence outward through thebody of the bead, the i eyed ends 3 terminating within the body of rubber l2 lying between the canvas section 9 and the body of the cord section. The various layers of canvas rubber and armor are vulcanized together in the ordinary manner to form a tire casing which is highly resilient from the head section to the metallic portion of the armor.

The closely interlacing rings of steel having the interlaced web of cords extending therethrough aflords a protecting layer which will be substantially impervious to any object over which the tire may pass. The cords being first impregnated with ruber and then inserted between the intersectportions of the rings, hold the rings apart during the application of the rubber and its vulcanization so that when the tire is completed each metallic ring is substantially completely surrounded by rubber and the friction which has hitherto been so objectionable a feature of armored tires is substantially completely obviated. The interwoven fabric of cores would in itself be a substantial armor and a highly efi'icient reinforcement for the casing but with the central portion of the interwoven fabric reinforced by the interlacing steel rings passing rough. the interstices and every space. ied With rubber, the portion of the tire most susoeptible to puncture is guarded by interlac- 5 ing metal practically non-puncturable.

This invention is in the nature of an improvement upon the tire rmor disclosed in United States Patent No. 895,821 issued August 11, 1908, to George VVilmot, Jr. it differs tl'ieretrom by the omission of the .:ai ies at the edges, by the limitation of the metallic .or to he rent-rat portion only or the fabric and by the location of the armor strip Within the body of the casing oi? between the CQSYQQQ and the inner patented structure the wire rings s of the armor strip adjacent to of the tire i tored with the flexibility ot the tire. and in the absence of the rubber interposed between the metallic rings the iriction occurring when the tire was in use resulted in too rapid Wear and in injury to the inner tube.

In the present invention these ditiiculties have been completely overcome and a tire constructed in the manner herein deseribed has been given a thorough test with entirely satisfactory results.

It Will be obvious that many changes may be made in the size and proportion of parts and various details of construction Without depai"'11p' from the spirit of my invention or sacri cing the advantages thereof. I Wish therefore to claim the invention in any of its forms or modifications Within the legitimate and valid scope of the appended claims.

I claim 1, An automobile tire casing; comprising tread portion intermediately between two bead portions and an armor for said tread portion consisting ol a plurality of interengaging; metallic rings, each being separated from an adjacent ring by a cord impregnated with rubbery said cords being interlaced to "form a. network with the end portending, beyond the in- I; 2 .ereng gin; the tread portion having a heavy Sayer of rubber Within which the network are embedded and the l of the cords beyond the rings extending ,.rom the tread portion of the oasin o the bead portions thereof.

tire comprising a relai automobis, tiveiy 116i? tread portion and two side portions terminating in reinforced bead portions armor portion comprising a plui iity o? interengaging inetaiiic rings embedded within said t eed "rtion. said rings chi a y otcoi teriaced thereto T017111 nctwo ends of said rlin in erlar 111.9; 11119}; 1 i

ord the i ue portions into o. fin automobile tire conipri a vulr-auir' 'i'ubber or. 111;; having molded therein an ill; or strip 11 fit; up of a meta lic tahric iosed oi rin which rlocli both udinaly laterally, said rings beihe center of that portion ot interlacing cords arranged .ough the rings between points 11 thereof, said cords extending 01 said casing which engage 1 m Wheel.

JOHN et sT.

iVitnesses 4 i. L. TERNA, ARTHUR M i NM 1 K.

to the bead portions said I'l11.S' 

